Tail Light Brightness

[DD931]

I'm getting ready to do some wiring and lighting system upgrades on my '48 F-1. This will include some new wiring and turn signals. My question: Over time I've read posts from folks who painted the inside of their tail light housings with something other then standard black. I remember silver (aluminum) and white. What do you guys use? What's best? I'm not going to 12 volts or leds. I just want to make the most of what Henry provided. Thanks!!